The slightly different USB stick: Original model car made of metal (licensed by the manufacturer), incl. Moving wheels, perfect as a toy or as a model on the deskFront lights (LED) flash for data transmission and the USB port is retractable16 GB of memory offers space. Read Speed: up to 12 MB/SWrite Speed: up to 4 MB/Sec Compatible with PC: Windows 98 SE, ME, 2000, XP, Vista, 7, 8, 8.1 or higher and Mac OS 9.0 or OS X 10.4 and laterEasy plug and play installation (connect and use directly), power supply via USB